Evaporating apparatus.



D. GOZZOLINO.A EVAPOBATING APPARATUS. APrLIoA'TIoN FILED JULY 11. 1912.

WIN/8858 DONATO coazoLINo, cursan Dmefoamronnm.

evacuar-se. semanas.

speitdiin af Letters raient. Eppiicatin' met 111154 11, 1912. serial No. 708,832.

Patented Aug. 5,1913.

Be* it khownthat L Do'NTo CozzoLiNo, a subject of the' Kiii' of Italy, and a resident of Sari DieA o, in t e county of San Diego and State `o California, have invented-a new and Impro-vedEvaporating lpparatus, of which the following is a ful, cle'ar, and exact descr'pti'o'n.

- he avenida relate-S to apparatus for dealcoholizing, condensing, evaporating or distiuin'" tiqaids that foam during ,ebullitiii, an ,its object is to provide a new and improved evaporating apparatus arranged to reduce foaming of the li uid toa minimuni' while undergoing ebul ition and thus preventing the liquidA from passing out of the apparatus. For the purpose mentioned use is made o'f anevapor'ating vessel provided with a perforate diaphragm arranged a short distance above the level of the `liquid in the vessel so that in case the liquid begins to foam the foam can notpass through the diaphragm and be drawn out of the evaporating vessel.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this speciiication, in which similar characters of reference indicate corresponding parts in all the views.

Figure 11 is a sectional side elevation of the evaporating apparatus on the line l-l of Fig. 2; Fig. 2 is a sectional plan view of the same on the line 2 2 of Fig. l, part of the fabric top of the diaphragm being broken out; and Fig. 3 is an enlarged seo# tional side elevation of a portion of the diaphragm.

In order to check the foaming tendency of a liquid while undergoing ebullition in an evaporating apparatus, use has heretofore been made of soa wax, oil, butter and other substances a ded to the liquid while undergoing ebullition, and it is well known that such added substances are onlyp'artially successful in liquids of weak foaming quality, and arev practicall without value in strongly foaming liqui s, such as malt beverages, beer, ale, stout, and malt eX-' tracts, and fruit juices like pineapple juice, for instance. It is evident that the addition of such extraneous substances more or less taints and impairs the avor thereof.

With the improvement presently to be described in detail foaming' is reduced to a minimum by mechanical means;

The evaporating vessel A shown in the C, as indicated in Fig. l, or other suitable heating means may be employed. A diaphragm D is interposed between the sections A and A2 and is located a short distance above the liquid contained in the lower section A. The diaphragm D is perforate and is preferably formed of a stout wire netting D overlaid by one or more layers D2 of burlap or other similar fabric material. The layers D2 of the fabric material are clamped at'their marginal edges between clamping rinvs held between the Aflanges As an'dA4 of the sections A and A2, and which ianges are fastened together by bolts F which also pass through the clamping hen the apparatus is in use, the foam arising from the liquid does not pass through the diaphragm D and consequently is confined within the lower section A of the vessel A. The diaphragm D i's, however, sufiiciently perforate toallow the vapors to pass through it and into the upper section A2 from which the vapors are drawn through the pipe B to a refrigerating coil or other means tov be depressed or condensed as the case may be.

In practice, it is advisable to prod uce a vacuum 1n the vessel A for a few minutes before heating the li uid contained in the lower section A to al ow the carbonio acid gas contained in `the liquid to escape.

During the dealcoholizing, condensing, evaporatmg or distilling process the liquid is kept gently foaming and this is governed by. the operator observing the operation within` the vesselA through fpeep holes G arrand in the side walls of the upper section, 2. The upper section A2 is provided with 'an electric light H for illuminating the interior thereof, and the upper section is als'o. provided with a val-ve I to permit the admission of air to the upper section A2 to -reduce or break the vacuum therein to any desired degree in case the foaming should Vbecome excessive and the foam'pass through the diaphragm D into the upper section A2.

4 By keeping the temperature and the vacuum.

in proper relation, the process of dealcoholizing, condensing, evaporating or distilling proceeds regularly, andall the alcohol is separated 1n a few hours.

It is understood that in case the operator permits the liquid to filter through diaphragm D and to allow the liquid to foam` inthe upper section A2, it is then only necesvacuum producing device and consequently distillation isintertered with. c, y

The evaporatino vessel A is provided with a suitable ma'nho edv having an inlet K for charging the vessel with liquid, and the lower end of the vessel, A is provided'with an outlet L controlled by a valve N for discharging the'bontents of the` vessel' after the processis completed.

' Having thus described invention,.l

claim asnew and desire to secure byLetter'sk o Patent:

1. Antevaporating apparatus, comprising an evaporatmg vessel made'in sections, of which the lower section is adapted to oo ntain the liquid to be evaporated and the Losanna upper section isprovided with an outlet connected with a vacuum producing device, and a perforate diaphragm intermediate the said upper and lower sections, the diaphragm being formed of a layenofwire netting and superimposed layers of 'cloth fabric formed of textile material.

2. An evaporating apparatus comprising a vessel in two sections having danged contiguous edges, of which the lower section is adapted to contain the liquid. to be evaporated and the upper sect-ion is'provided with 1 an outlet connecting with a vacuum pro- `ducing device, a perforated diaphragm in# termediate the said upper and-lower sections, said diaphragm beingformed of a layer of wire netting constituting a foraminous support and a layer of cloth fabric formed of textile material disposed on said oraminous support and of suiicient weight to counterbalance the pressure of foam and at the same time `admit of evaporation, the said diaphra m being clamped between the flanged vesse` in osition. Y

'i n testimony whereof` I have signed my name to this specification in the 'presence of two subscribing 'witnesse Witnesses: i v o l ALBERT VIeNoLo,

q lELorinNoro lEUzQUnLLAs.

515@ sections "and thus held tightlyA s Y DONATO COZZQlLlNO. i 

